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Finding the Third Proportional to 220,444 and 329,809

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Solution

The third proportional to 220,444 and 329,809 is: 493,431.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,444 : 329,809 = 329,809 : x
  2. Step 2: Convert to fraction form
    220,444/329,809 = 329,809/x
  3. Step 3: Cross multiply
    220,444x = 329,809 × 329,809
  4. Step 4: Simplify right side
    220,444x = 108,773,976,481
  5. Step 5: Solve for x
    x = 108,773,976,481/220,444
  6. Step 6: Final answer
    x = 493,431.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.